32
Chapter 2
Basic Calculations
Example
Operation
Display
What is the absolute value of
the common logarithm of 3 ?
4
|
log 3
|
= 0.1249387366
K[
1
(NUM)
4
1
(Abs)
l
(
3
/
4
)
w
0.1249387366
What is the integer part of
K[
1
(NUM)
2
(Int)
(
7800
/
96
)
w
81
What is the decimal part of
K[
1
(NUM)
3
(Frac)
(
7800
/
96
)
w
0.25
200
÷
6 =
200
/
6
w
33.33333333
×
3 =
*
3
w
100
Round the value used
200
/
6
w
33.33333333
for internal calculations
K[
1
(NUM)
4
(Rnd)
w
33.33333333
to 11 digits*
*
3
w
99.99999999
What is the nearest integer
K[
1
(NUM)
[
1
(Intg)
not exceeding – 3.5?
-
3.5
w
– 4
* When a Fix (number of decimal places) or Sci (number of significant digits) is in effect, Rnd
rounds the value used for internal calculations in accordance with the current Fix or Sci
specification. In effect, this makes the internal value match the displayed value.
(4) Coordinate Conversion
u
u
u
u
u
Rectangular Coordinates
u
u
u
u
u
Polar Coordinates
• With polar coordinates,
θ
can be calculated and displayed within a range of
–180
°
<
θ
<
180
°
(radians and grads have same range).
Example
To calculate
r
and
θ
°
when
x
= 14 and
y
= 20.7
Operation
Display
!Z
cc
1
(Deg)
Q
K[
2
(ANGL)
[[
1
(Pol()
14
,
20.7
)
w
Ans
1 –24.989–
→
24.98979792 (
r
)
2 – 55.928–
→
55.92839019 (
θ
)
7800
––––– ?
96
7800
––––– ?
96
Summary of Contents for fx-7400G PLUS
Page 7: ... fx 7400G PLUS ...
Page 14: ...xii Contents ...
Page 57: ...Differential Calculations Chapter 3 ...
Page 176: ...162 Chapter 8 Programming ...
Page 188: ...Chapter 9 Data Communications 174 ...
Page 199: ...185 1 2 3 4 5 Program for Circle and Tangents No 4 Step Key Operation Display ...
Page 200: ...186 Program for Circle and Tangents No 4 Step Key Operation Display 6 7 8 9 10 ...
Page 201: ...187 11 12 13 14 15 Program for Circle and Tangents No 4 Step Key Operation Display ...
Page 202: ...188 16 17 18 Program for Circle and Tangents No 4 Step Key Operation Display ...
Page 205: ...191 1 2 3 4 5 Program for Rotating a Figure No 5 Step Key Operation Display ...